Flies Away Traps and Kills up to 20,000 Flies Safe Non-Toxic Flies-Away is the non-toxic way to rid your yard of flies. Trap and kill up to 20,000 flies at a time with this safe, bio-degradable, EPA approved system. The unique attractant mixed with water emits a luring scent which brings flies into the lobster-type trap - once in, they can't get out. Just add the included government tested bait, ...